In the past I have received signals that seriously funded institutes and Universities have put out there, but never considered doing it myself was an option without a few hundred grand going spare, if there is a 'budget' method you come across then please share.

The husband of a lady I'm working with is an astrophysicist - and he is studying black holes. X-ray telescopes in orbit. Nothing in the way and an easy way to keep the electronics cool (for certain periods in the orbit) Seriously hard - making the maths most of us have rather basic!